EP3017988B1 - Structure de routage de câblages d'alimentation de moteur pour roue entrainée par un moteur-roue - Google Patents

Structure de routage de câblages d'alimentation de moteur pour roue entrainée par un moteur-roue Download PDF

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Publication number
EP3017988B1
EP3017988B1 EP14818848.5A EP14818848A EP3017988B1 EP 3017988 B1 EP3017988 B1 EP 3017988B1 EP 14818848 A EP14818848 A EP 14818848A EP 3017988 B1 EP3017988 B1 EP 3017988B1
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EP
European Patent Office
Prior art keywords
power source
source terminal
wheel
feed wire
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14818848.5A
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German (de)
English (en)
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EP3017988A1 (fr
EP3017988A4 (fr
Inventor
Yutaka Matayoshi
Tomoki Hirabayashi
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Publication date
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Publication of EP3017988A1 publication Critical patent/EP3017988A1/fr
Publication of EP3017988A4 publication Critical patent/EP3017988A4/fr
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/73—Means for mounting coupling parts to apparatus or structures, e.g. to a wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/64—Devices for uninterrupted current collection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0038—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0061—Disposition of motor in, or adjacent to, traction wheel the motor axle being parallel to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/24—Steering angle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/145—Structure borne vibrations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/04—Turnable line connectors with limited rotation angle with frictional contact members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a motor power feed line or wire routing structure for an in-wheel motor driven vehicle wheel that is driven by an electrical motor and steered by a steering operation.
  • Patent Document 1 JP 2002-247713 A
  • JPH03121930A discloses a wiring from a control device to a wheel motor that is connected via connection devices and laid between a lower arm and a vehicle body, between a wheel support member and the lower arm, and within an axle.
  • JP2013159224A discloses a motor power supply line that is extended upward from a motor drive unit, routed to extend along an upper arm via a kingpin axis penetration part of an upper arm and a mutual connection part between the upper arm and a wheel.
  • JP 2006-062388 A discloses a wheel drive for a vehicle, which hangs the wheel on the vehicle body with a suspension and supplies electric power to an in-wheel motor through an electric wire from the car body side by building the in-wheel motor to drive the wheel in the rim of the wheel.
  • the electric wire is constituted spirally wound around a kingpin central line of the suspension.
  • a spirally wound part is stored in a storage case mounted on the car body side.
  • the present invention has been made in view of the above problems, and aims to provide a motor power feed wire routing structure for an in-wheel motor driven wheel in which the whirling of the vehicle body-side feed wire may be reduced associated with the steering operation.
  • the electrical connection mechanism electrically connects the vehicle body-side feed power wire to the motor side power feed wire relatively rotatably to each other. Further, the electrical connection mechanism is placed on the knuckle outside of a space of the wheel recess of the wheel.
  • the knuckle is a member which is provided to be steered or turned about the kingpin axis representing a central axis of turning when steering the steered wheel.
  • the electrical connection mechanism which is mounted on the knuckle will be disposed proximate to the kingpin axis. Therefore, the body-side power feed wire connected to the electric connection mechanism swings about the kingpin axis along a small radius of rotation even when the steered wheel is subject to great turn so that the whirling of the vehicle body-side power feed wire may be reduced associated with the steering.
  • FIG. 1 shows a cross section of a mounting portion of the in-wheel motor driven wheel to which a motor power feed wire routing structure in a first embodiment is applied.
  • the in-wheel motor driven wheel refers to a vehicle wheel disposed in a front wheel of an in-wheel motor vehicle, which is driven by a motor while being steered by the steering operation.
  • the motor power feed wire routing structure refers to such a structure of the power feed wire which is subject to whirling or deflection in response to steering operation in the vicinity of the motor when a power feed line is connected from a vehicle mounted power source to the motor disposed or mounted within the wheel.
  • the in-wheel motor driven wheel of the first embodiment is provided with a tire 1, a wheel 2, a wheel axis 3, a vehicle body side member 4, an in-wheel motor 5 (motor), a knuckle 6, and a virtual kingpin axis 7. Further, as a front suspension member, a lower arm 8, a shock absorber shaft 9, an upper arm 10, and a third link 11 are provided. In addition, as a power feeding configuration to the in-wheel motor 5, a rotary power source terminal 12 (electrical connection mechanism), and an unsprung feed wire 13 are provided..
  • the tire 1 is incorporated in the wheel 2. Further, the knuckle 6 and the in-wheel motor 5 are integrated along the wheel axis 3 via a brake disk and a hub (not shown) to the wheel 2.
  • the knuckle 6 is disposed so as to be steerable about the axis of virtual kingpin axis 7, the upper side of which is inclined in the vehicle width direction inner side with respect to a vehicle body.
  • the wheel 2 is connected to an axle which is rotatably supported on the knuckle 6.
  • the in-wheel motor 5 provides the driving force to the axle.
  • the lower arm 8 is arranged such that a body-side swivel point 8a of the lower arm is incorporated in the vehicle body while the other, motor side swivel point of the lower arm and kingpin axis bottom point 8b is incorporated rotatably to the knuckle lower end 6b.
  • the upper end 6a of the knuckle 6 is rotatably incorporated into a third link 11.
  • the shock absorber lower end 11c of the third link 11 is rotatably incorporated into the shock absorber lower end 9a, while the shock absorber upper end 9b is rotatably mounted to the vehicle body.
  • the body side shaft 10a thereof is rotatably incorporated to the vehicle body side member 4, while the other third link side shaft 10b thereof is swivel mounted to the third link 11.
  • the rotary power source terminal 12 is attached to the knuckle 6, and is composed of a fixed or stationary portion 12a and a rotating portion 12b. With respect to the stationary power feed wire 13a (motor side feed wire) constituting an unsprung feed wire, the movable power feed wire 13b (body side feed wire) is electrically connected to be relatively rotatable. Further, the rotary power source terminal 12 representing an electrical connection mechanism is disposed outside of a space of the wheel recess 2a of the wheel 2 and is mounted to the knuckle 6.
  • Two ends of the stationary power feed wire 13a extending from the in-wheel motor 5 are connected to a fixed portion 12a which is disposed below in the vehicle vertical direction of the rotary power source terminal 12, and to the motor side power source terminal 5a of the in-wheel motor 5, respectively.
  • the movable power feed wire 13b extending from the vehicle mounted power source (not shown) is connected to a rotating portion 12b disposed on the upper side in the vehicle vertical direction of the rotary power supply terminal 12.
  • the virtual 7 represents an axis that connects the lower end 6a of the knuckle 6, which corresponds to the motor side swivel point & lower point 8b of the kingpin axis, and the top end 6a of the knuckle 6, which corresponds to the knuckle arm side axis 11b of a third link.
  • the tire 1 is turned about the virtual kingpin axis 7 by a tire steering mechanism (not shown). Note that, when the tire 1 is turned about the virtual kingpin axis 7, the wheel 2, the knuckle 7, the in-wheel motor 5, the rotary power source terminal 12, and the stationary power feed wire 12a are integrally turned in association.
  • each component incorporated into the upper arm 10 and the lower arm 8 is subject to bound and rebound either about the body side axis 10a of the upper arm or the body side swivel axis 8a of the lower arm within a setting range of shock absorber shaft 9.
  • FIG. 2 is an A-A cross-sectional view (Part 1) of a rotary power source terminal mounting in the motor power feed wire routing structure in the first embodiment. Below, with reference to FIG. 2 , a description is made of a rotary power supply or feed terminal mounting structure.
  • a stationary power feed wire 13a is connected to the rotary power source terminal 12 from the motor power source terminal 5a of the in-wheel motor 5.
  • a movable power feed wire 13b is connected from the rotary power source terminal 12 to the vehicle body side.
  • Each of two rotary power source terminals 12, as shown in FIG. 2 is disposed in a position in the vehicle longitudinal direction of the knuckle 6. That is, the knuckle 6 is configured such that the knuckle width is set smaller than the motor diameter when viewed in the axial direction of the motor (see FIG. 12 ), and the two rotary power terminals 12 and 12 are arranged around the knuckle 6 at substantially the same radius about the virtual kingpin axis 7 (rotation radius R1).
  • the rotation radius R1 connecting the two rotary power terminals 12 and 12 with the virtual kingpin axis 7 representing the turning central axis is set smaller than the rotation radius R2 connecting the virtual kingpin axis 7 and the motor power source terminal 5a (i.e., R1 ⁇ R2).
  • FIG. 3 shows a motor wire and a rotary power source terminal wire in a cross section corresponding to the rotary power source terminal mounting cross section A-A in the motor power feed wire routing structure in the first embodiment.
  • a motor power feed wire routing structure is assumed as a Comparative Example in which the unsprung feed wire from the onboard power source is connected directly to the motor power source terminal of the in-wheel motor.
  • the wire bulges in a large arcuate shape toward the vehicle front side. Also, the unsprung feed wire C" in response to the left steering operation, as shown in FIG. 3 , is subject to deformed bending in contact interfere with the shock absorber shaft 9.
  • the rotary power source terminal 12 is provided that electrically connects the stationary power feed wire 13a extending from the in-wheel motor 5 and the movable power feed wire 13b extending from the vehicle mounted power source such that the movable power feed wire 13b is rotatable relative to the stationary power feed wire 13a. Further, such a configuration is adopted in which the rotary power source terminal 12 is arranged or mounted on the knuckle 6.
  • the rotary power source terminal 12 arranged on the knuckle 6 is rotated in response to the right steering angle ⁇ R and the left steering angle ⁇ L, the rotary power source terminal 12 is closer to the virtual kingpin axis 7 than the motor power source terminal 5a.
  • the rotation radius R1 of the rotary power source terminal 12 is smaller than that of the rotation radius R2 of the motor power source terminal. Therefore, at the time of the right steering, the wire can be suppressed to a small whirling to the position of the moveable feed line 13b' from the movable power feeding line 13b of the steering neutral position along the rotation radius R1 along with the rotary power source terminal 12.
  • the wire can be suppressed to a small whirling to the position of the moveable feed line 13b" from the movable power feed line 13b along the rotation radius R1 with the rotary power source terminals 12.
  • the rotary power source terminal 12 when connecting the unsprung feed wire 13 of the in-wheel motor 5 from the vehicle body via the rotary power source terminal 12, first, the rotary power source terminal 12 is attached to the knuckle 6 at the outside position of the wheel 2. Then, the fixing portion 12a of the rotary power source terminal 12and the motor power source terminal 5a is connected by a stationary power feed wire 13a. Finally, the movable power feed wire 13b from the vehicle mounted power source is connected to the rotating portion 12b of the rotary power source terminal 12.
  • the unsprung feed wire routing is performed by the connection between the rotating portion 12b of the rotary power source terminal 12 attached to the knuckle 6 and the movable power feed wire 13b, which realized a compact arrangement in a space away from the in-wheel motor 5.
  • the height of the wheel house can be set lower.
  • the design flexibility is improved so that appeal as a vehicle increases.
  • the knuckle width of the knuckle 6 is set smaller than the motor diameter when viewed in the axial direction of the motor. Also, such a configuration is adopted in which the fixing portion 12a or the rotary power source terminal 12 is arranged on the lower side of the vehicle vertical direction and the rotating portion 12b of the rotary power source terminal 12 is disposed on the upper side of the vehicle vertical direction.
  • the rotary power source terminal 12 when the rotary power source terminal 12 is rotated associated with the steering to the left or right direction, the rotating portion 12b is rotated by a pulling force from the movable power feed line 13b, and the connection point with respect to the rotating portion 12b of the movable power feed wire 13b is directed to the shortest. That is, the movable power feed wires 13b, 13b', 13b" at each of the steering positions, as shown in FIG. 3 , show a straight line shape feed wire connecting the rotating portion 12b and the vehicle mounted power supply.
  • the rotary power source terminal 12 may be brought closer to the virtual kingpin axis 7. Further, by allowing the free overall length of the movable power feed wire 13b to be shortened, it is possible to hold the whirling movement or deflection of the movable power feed wire 13b small. In addition, since the whirling space is reduced, the design flexibility of the peripheral part is increased. At the same time, due to the movement of the rotating portion 12b of the rotary power source terminal 12 with a rotational displacement degree of freedom, it is possible to reduce shaking, twisting, and deformation of the movable power feed wire 13b itself.
  • the rotary power source terminal 12 has two pieces or units.
  • the two rotating power terminal units 12, 12 are connected to respective movable power feed wires 13b, 13b.
  • the two movable power feed wires 13b, 13b will be jointly suppressed from whirling without imparting a difference in the whirling reduction caused by the steering operation.
  • two rotary power source terminal units i.e., a first rotary power source terminal unit 12(1) and a second rotary power source terminal unit 12(2), are respectively arranged around the knuckle 6 at a rotation radius R1 and a rotation radius R3 (> R1) about the virtual kingpin axis 7, respectively.
  • FIG. 4 shows the difference in the position of the rotary power source terminal in a cross section corresponding to the rotary power source terminal mounting section A-A in the second embodiment.
  • the first rotary power source terminal unit 12(1) out of the two rotary power source terminal units 12 (1), 12 (2) is arranged around the knuckle 6 at the rotation radius R1 about the virtual kingpin axis 7. Further, the second rotary power source terminal unit12 (2) is placed in a radial extension line connecting the virtual kingpin axis 7 and the first rotary power source terminal 12 (1), at the position of the rotation radius R3 (> R1). Note that the two rotary power terminal units 12 (1), 12 (2) are both disposed on the vehicle front side of the wheel axis 3.
  • FIG. 4 shows the variations or deflected states of the movable power feed power wires 13b(1), 13b(2) when the rotary power terminal units 12(1), 12(2) with different rotation radii R1, R3 about the virtual kingpin axis 7 are subject to be moved at the same steering angle.
  • the arrangements of the first rotary power source terminal unit 12(1) and the second rotary power source terminal unit 12(2) in this manner results in a configuration in which the first rotary power source terminal unit 12(1) is mounted on the knuckle close to the virtual kingpin axis 7 while the second rotary power source terminal unit 12(2) is arranged closer to the vehicle mounted power source.
  • the first movable power feed wire 13b(1) undergoes a change indicated in broken line in FIG.4 .
  • whirling will be suppressed.
  • the second movable power feed wire 13b(2) closer to the vehicle mounted power source, it is possible to shorten the length of the second movable power feed wire 13b(2) compared to the first embodiment.
  • a third embodiment an example is shown in which three rotary power terminal units 12(1), 12(2), 12(3) are arranged around at substantially the same rotation radius R1 that is centered on the virtual kingpin axis 7.
  • FIG. 5 shows a plurality of rotary power source terminal units during steering operation in a third embodiment in a cross section corresponding to the rotary power source terminal mounting cross section A-A in the motor power feed wire routing structure.
  • FIG. 6 is a diagram (Part 1) showing the plurality of rotary power terminal units mounting viewed in a direction of arrow B. Below, with reference to FIGS. 5, 6 , a description is given of the third embodiment.
  • the three rotary power terminal units 12 (1), 12 (2), and 12 (3) are all arranged around the knuckle 6 in a equidistant position of the rotation radius R1 around the virtual kingpin axis 7.
  • the three movable power feed wires 13b (1), 13b (2), and 13b (3) are respectively connected in a knuckle front position, a knuckle position, and knuckle rearward position, as shown in Fig. 5 , with equal intervals in the vehicle longitudinal direction.
  • the three rotary power terminal units 12 (1), 12 (2), and 12 (3) are placed, as shown in Figure 6 , at the same height position in the vehicle vertical direction with respect to the knuckle 6.
  • the arrangement is well suited to power a 3-phase, in-wheel motor 5. Further, by arranging the three rotary power source terminal units 12(1), 12(2), and 12(3) close to the virtual kingpin axis 7 (at rotation radius R1), the whirling of the three movable power feed wires 13b(1), 13b(2) and 13b (3) can be suppressed.
  • a fourth embodiment an example is illustrated in which three rotary power source terminal units 12(1), 12(2), and 12(3) disposed around the knuckle 6 are arranged at different height positions.
  • FIGS. 7 shows a plurality rotational power terminals mounted arrow B in the motor power feed line routing structure of Example 4 (Part 2)
  • Fig. 8 shows a multiple rotary power terminals mounted arrow B (3)
  • Fig. 9 shows a plurality rotation power terminal mounting arrow B (Part 4).
  • a fourth embodiment will be described with reference to FIGS.
  • FIG. 7 shows an example in which, of the three rotary power source terminal units 12(1), 12(2), and 12(3), the first rotary power source terminal unit 12(1) and the third rotary power source terminal unit 12(3) are arranged at the same height, while the second rotary power source terminal unit 12(2) is arranged to be shifted in the vehicle lower position.
  • FIG. 8 shows an example in which, of the three rotary power source terminal units 12(1), 12(2), and 12(3), the first rotary power source terminal unit 12(1) is arranged at the highest position, the second rotary power source terminal unit 12(2) is arranged in the next height position, and the third rotary power source terminal unit 12(3) is arranged in the lowest position.
  • FIG. 8 shows an example in which, of the three rotary power source terminal units 12(1), 12(2), and 12(3), the first rotary power source terminal unit 12(1) is arranged at the highest position, the second rotary power source terminal unit 12(2) is arranged in the next height position, and the third rotary power source terminal unit 12(3) is arranged in the lowest position.
  • FIG. 9 shows an example in which, out of the three rotary power source terminal units 12(1), 12(2), and 12(3), the first rotary power source terminal unit 12(1) is disposed on the vehicle front side, and the second rotary power source terminal unit 12(2) and the third rotary power source terminal unit 12(3) are arranged side by side to the vehicle rear side.
  • the central one may be shifted in the vertical direction ( FIG. 7 ), the three units may be vertically shifted from each other ( FIG. 8 ), or one unit is shifted from the remaining two units ( FIG. 9 ).
  • the arrangement of three rotary power source terminal units 12(1), 12(2), and 12(3) with respect to the knuckle 6 is configured to provide a step either vertically or horizontally. Therefore, in response to a steering operation, even when a plurality of movable power feed wires 13b(1), 13b(2), and 13b(3), such as three-phase wires, are subject to be deflected, the interval between adjacent feed wires is sufficiently secured to thereby prevent the interference among the movable power feed wires 13b(1), 12b(2), and 13b(3).
  • a firth embodiment an example is shown in which, with respect to one rotary power source terminal, a plurality of feed wires are connected so as to form a multiple wire integral rotary power source terminal.
  • FIG. 10 shows an integral rotary power source terminal for a plurality of wires in the fifth embodiment in a cross section corresponding to the rotary power source terminal mounting cross section A-A for the motor power feed wire routing structure.
  • FIG. 11 is a turning trajectory explanatory view (Part 6) showing the steering trajectory of the integral rotary power source terminal.
  • the multiple wire integral rotary power source terminal 12' is formed in a multi-pole rotary power source terminal structure, in which a rotary power source terminal for connecting a plurality of feed wires, such as two or three, is formed in one piece.
  • the multiple wire integral rotary power source terminal 12' is disposed at the position of rotation radius R from the virtual kingpin axis 7 at a rotation radius R, only on the vehicle front side of the knuckle 6.
  • the rotary power source terminal may not be arranged on the one side of the knuckle 6.
  • the rotary power source terminal 12 ' it can be placed in the empty space on the other side of the knuckle 6.
  • the multiple wire integral rotary power source terminal 12' may be placed in bundle, as shown in FIG. 11 , to reduce interference space.
  • the interference space when bundling two movable power source wires 13b, the interference space may be halved. When bundling three movable power source wires 13b, the interference space may be reduced to one third. Note that the other configurations and effects are the same as in the first embodiment. Thus, the description thereof will be omitted.
  • FIG. 12 shows the stationary power feed wire when viewed from rearward end of the rotary power source terminal mounted motor in the motor power feed wire routing structure.
  • FIG. 13 shows a stationary power feed wire integral bracket as viewed rearward end from the rotary power source terminal mounted motor in the motor power feed wire routing structure.
  • FIG. 14 shows a reinforcing bracket structure integral with a stationary power feed wire.
  • FIG. 15 shows a reinforcing bracket structure integral with a plurality of stationary power feed wires.
  • the motor power source terminal 5a of the in-wheel motor 5 is connected by a stationary power feed wire 13a to a fixed portion 12b of the rotary power source terminal 12 which is disposed near the knuckle 6.
  • a movable power feed wire 13b leading to the vehicle body is connected to the rotating portion 12a of the rotary power supply terminal 12.
  • the rotary power supply terminal 12 is fixed via a bracket to the knuckle 6.
  • the stationary power feed wire 13a and the bracket for fixing the rotary power source terminal 12 are separate.
  • the stationary power feed wire integral bracket 14 formed of a reinforcing bracket structure integral with the stationary power feed wire, the in-wheel motor 5, the rotary power source terminal 12, and the knuckle 6 are fixed in position.
  • the stationary power feed wire integral bracket 14 has, as shown in FIG. 14 , a terminal surface 14c to be electrically conductive with the in-wheel motor 5 and the stationary power source terminal 12.
  • the conductive wire 14a is housed in a non-electric material such as reinforced rubber or reinforced plastic.
  • the bracket is fixed with a bolt fixing hole 14b.
  • the stationary power feed wire integral bracket may be formed in a stationary power feed wire integral bracket 15 of a reinforcing bracket structure integral with a plurality of stationary power feed wires.
  • This stationary power feed wire integral bracket 15 has, as shown in FIG. 15 , terminal surfaces electrically conductive with the in-wheel motor 5 or the rotary power source terminal 12.
  • a plurality of conductive wires 15a is encased in a non-conductive material such as reinforced rubber or reinforced plastic.
  • the braked 15 is further fixed through a bolt fixing hole 15b.
  • the stationary power feed wire integral brackets 14, 15 in the sixth embodiment is formed in a conductive reinforcing bracket structure. Further, the in-wheel motor 5, the rotary power source terminal 12, and the knuckle 6 are fixed in position. Thus, it is possible to reinforce the support strength of the in-wheel motor 5. In particular, as shown in FIG. 13 , when fixing a pair of stationary power feed wire integral brackets 14, 14 are fixed, the in-wheel motor is supported in a both end support condition. Thus, it is possible to further reinforce the support strength of the in-wheel motor 5. Also, it is possible to achieve even compactness by forming the stationary power feed wire integral with the bracket.
  • Figure 16 shows a structure of a rotary power source terminal, which is made compact in the motor power feed line routing structure in a seventh embodiment. Below, a description is given of the seventh embodiment with reference to FIG. 16 .
  • the rotary power source terminal 12 includes a rotating contact portion 12e, a rotating screw portion 12d, a stationary fixed portion 12f, and fixed screw portion 12i. Further, a resilient member 12 is interposed in a gap between the fixed cylindrical contact surface 12g and a rotating contact surface 12e for press fitting the parts relatively rotatably.
  • the rotary power source terminal 12 is configured such that the resilient member 12h is interposed in a gap formed between the outer periphery of the rotating shaft member (rotating contact portion 12e and the rotating screw portion 12d) and the inner periphery of the cylindrical fixing member (fixing portion 12f and the fixing screw portion 12f). Therefore, while reducing the number of components and downsizing radially, it is possible to energize by a stable electricity while rotating the rotating contact portion 12e and the rotating screw portion 12d.
  • FIG. 17 shows a structure considering the leakage measures against the surroundings of the rotary power source terminal which is made compact in the motor power feed wire routing structure of an eighth embodiment.
  • FIG. 18 shows a knuckle arrangement structure of the rotary power source terminal.
  • the rotary power source terminal 12 to be mounted on the knuckle 6 is formed such that the rotating contact portion 12e and the rotating screw portion 12d are shaped with a small shaft of rotating shaft member.
  • the fixing portion 12f formed in a cylindrical fixing member, a resilient member 12h, and the fixing screw portion 12i are structured with a large diameter and fixed to the knuckle 6.
  • the resilient member 12h a multiple contact such as a contact spring (multi contract) and the like may be used, which allows contacting with low contact resistance by multi-faceted contact.
  • the outer periphery of the rotating shaft member is covered by a rotating portion side leakage covering member 12j having an insertion hole of the movable power feed wire 13b.
  • the outer periphery of the cylindrical fixing member is covered by a rotating portion leaking covering member 12k having an insertion hole of the stationary power feed wire 13a.
  • the rotating portion 12b is disposed in a vehicle upper position, and the fixing portion 12a is disposed in the vehicle lower position.
  • the connection point with the movable power feed wire 13b is elevated so as to reduce interference with the in-wheel motor 5.
  • the fixed portion 12a is so configured to be placed in the vehicle lower position, the outer periphery of the fixing portion 12a provides a support portion to be fixed via a bracket or the like. Thus, it is possible to increase the overall support rigidity of the rotary power source terminal 12.
  • an example of a rotary power source terminal 12 is shown in which a fixing portion 12a for connecting a stationary power feed wire 13a extending from the in-wheel motor 5 and a movable power feed wire 12b for connecting a movable power feed wire 13b extending from the vehicle mounted power source.
  • the electrical connection mechanism functions to electrically connect the movable power feed wire to the stationary power feed wire, with both wires being held relatively rotatably to each other.
  • other mechanism than the rotary power source terminal may be used.
  • the motor power feed wire routing structure for an in-wheel motor driven wheel according to the present invention is applied to a vehicle front wheel with a front suspension of an in-wheel motor vehicle.
  • the motor power feed wire routing structure for an in-wheel motor driven wheel according to the present invention is also applicable to a rear wheel and the like when the wheel is subject to be driven and steered.

Landscapes

  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Power Steering Mechanism (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (7)

  1. Ensemble de roue entraînée par un moteur-roue comportant une roue entraînée par un moteur-roue (2) ayant une articulation (6) prévu pour être dirigé autour d'un axe de pivot d'attelage virtuel (7), une roue (2) reliée à un essieu qui est supportée en rotation par l'articulation (6), et un moteur (5) pour fournir une force d'entraînement à l'essieu, la roue entraînée par un moteur-roue (2) comportant
    un mécanisme de connexion électrique (12) reliant électriquement un câble d'alimentation électrique côté moteur (13a) s'étendant depuis le moteur (5) et un câble d'alimentation électrique côté carrosserie du véhicule (13b) s'étendant à partir d'une source d'alimentation montée sur le véhicule de sorte que le câble d'alimentation électrique côté carrosserie du véhicule (13b) soit relié en rotation par rapport au câble d'alimentation électrique côté moteur (13a),
    où
    l'axe de pivot d'attelage virtuel est incliné de sorte qu'un côté de l'axe de pivot d'attelage virtuel (7) au-dessus de l'articulation pointe dans la direction de la largeur du véhicule vers le côté intérieur du véhicule,
    et
    le mécanisme de connexion électrique (12) est disposé plus près de l'axe de pivot d'attelage virtuel (7) qu'une borne (5a) du câble d'alimentation électrique côté moteur (13a),
    caractérisé en ce que :
    le mécanisme de connexion électrique (12) est disposé sur l'articulation (6) à l'extérieur d'un espace d'un évidement de roue (2a) de la roue (2), et
    le mécanisme de connexion électrique (12) peut tourner autour de l'axe de pivot d'attelage virtuel (7) le long d'un rayon de rotation (RI), le rayon de rotation étant différent de zéro, pendant le braquage de la roue entraînée par un moteur-roue (2).
  2. Ensemble de roue entraînée par un moteur-roue tel que revendiqué dans la revendication 1, dans lequel le mécanisme de connexion électrique (12) est composé d'une pluralité d'unités, où la pluralité des unités du mécanisme de connexion électrique (12) sont agencées autour de l'articulation (6) de manière à se situer sensiblement au même rayon autour de l'axe de pivot d'attelage virtuel (7).
  3. Ensemble de roue entraînée par un moteur-roue tel que revendiqué dans la revendication 1 ou 2, dans lequel, lors de l'agencement d'une pluralité d'unités constituant le mécanisme de connexion électrique (12) près de l'axe de pivot d'attelage virtuel (7) autour de l'articulation (6), les unités sont configurées pour être agencées avec pas dans des positions de différentes hauteurs dans la direction verticale du véhicule.
  4. Ensemble de roue entraînée par un moteur-roue tel que revendiqué dans l'une quelconque des revendications 1 et 2, dans lequel le mécanisme de connexion électrique (12) est formé dans une structure de borne de source d'alimentation rotative multipolaire de sorte qu'une seule borne de source d'alimentation rotative solidaire à câbles multiples soit configurée pour relier une pluralité de câbles d'alimentation par une borne de source d'alimentation rotative solidaire à câbles multiples monobloc.
  5. Ensemble de roue entraînée par un moteur-roue tel que revendiqué dans l'une quelconque des revendications 1 à 4, dans lequel le câble d'alimentation électrique fixe est formé dans un support solidaire de câble d'alimentation électrique fixe d'une structure de support de renforcement conductrice qui est fixée au moteur (5), au mécanisme de connexion électrique (12) et à l'articulation (6).
  6. Ensemble de roue entraînée par un moteur-roue tel que revendiqué dans l'une quelconque des revendications 1 à 5, dans lequel le mécanisme de connexion électrique (12) est formé dans une borne de source d'alimentation rotative qui est configurée de sorte qu'un élément élastique (12h) soit interposé dans un écart formé entre la périphérie extérieure d'un élément d'arbre rotatif (12e, 12d) et la périphérie intérieure de l'élément de fixation cylindrique.
  7. Ensemble de roue entraînée par un moteur-roue tel que revendiqué dans la revendication 6, dans lequel la borne de source d'alimentation rotative est configurée de sorte que la périphérie extérieure de l'élément d'arbre rotatif (12e, 12d) soit recouverte d'un élément de recouvrement de fuite côté partie rotative (12j) ayant un trou d'insertion pour le câble d'alimentation côté carrosserie du véhicule, et la périphérie extérieure de la partie de fixation cylindrique est recouverte d'un élément de recouvrement de fuite côté partie rotative (12j) ayant un trou d'insertion pour le câble d'alimentation côté moteur.
EP14818848.5A 2013-07-04 2014-04-25 Structure de routage de câblages d'alimentation de moteur pour roue entrainée par un moteur-roue Active EP3017988B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013140571 2013-07-04
PCT/JP2014/061684 WO2015001837A1 (fr) 2013-07-04 2014-04-25 Structure de routage de câblages d'alimentation de moteur pour roue entrainée par un moteur-roue

Publications (3)

Publication Number Publication Date
EP3017988A1 EP3017988A1 (fr) 2016-05-11
EP3017988A4 EP3017988A4 (fr) 2016-07-27
EP3017988B1 true EP3017988B1 (fr) 2018-03-21

Family

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US (1) US9553414B2 (fr)
EP (1) EP3017988B1 (fr)
JP (1) JP6056972B2 (fr)
CN (1) CN105324266B (fr)
WO (1) WO2015001837A1 (fr)

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JP6334590B2 (ja) * 2016-04-06 2018-05-30 Ntn株式会社 インホイールモータ駆動装置
JP7190102B2 (ja) * 2018-05-22 2022-12-15 マツダ株式会社 インホイールモータ駆動装置
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WO2023056531A1 (fr) * 2021-10-09 2023-04-13 Applied Electric Vehicles Ltd Ensemble roue et montant de suspension pour véhicule électrique
DE102021213787A1 (de) 2021-12-03 2023-06-07 Continental Automotive Technologies GmbH Kraftfahrzeug mit einer innenseitig liegenden elektrischen Verbindung für eine elektromechanische Radbremse

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Also Published As

Publication number Publication date
CN105324266B (zh) 2018-01-02
JPWO2015001837A1 (ja) 2017-02-23
EP3017988A1 (fr) 2016-05-11
JP6056972B2 (ja) 2017-01-11
CN105324266A (zh) 2016-02-10
EP3017988A4 (fr) 2016-07-27
US20160149357A1 (en) 2016-05-26
WO2015001837A1 (fr) 2015-01-08
US9553414B2 (en) 2017-01-24

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